Ok so received the scanner we are testing it.
First work before the propeller one is a pair of eye wear.
Understood before thinking about RE we need to have a clean mesh to work with.
I can use DAVID 4 and other free sw to create and clean the mesh, but I still need to remodel where the scan is not complete on tiny or internal parts such as the hollows or guides.
I did read good things about 3d-coat, any other suggestion?